A. M. Kotit, E. A. Omar, T. M. Srour, H. A. H Ibrahim, Ehab El-Haroun, A.M.A.S.Goda
{"title":"The effects of different vitamin E and selenium levels on growth performance, feed utilization, body composition, and intestinal bacterial load of European seabass (Dicentrarchus labrax) post-weaning fry","authors":"A. M. Kotit, E. A. Omar, T. M. Srour, H. A. H Ibrahim, Ehab El-Haroun, A.M.A.S.Goda","doi":"10.1007/s10499-024-01793-w","DOIUrl":"10.1007/s10499-024-01793-w","url":null,"abstract":"<div><p>The current study investigates the combined effect of different dietary vitamins E and selenium (sodium selenite, Se) on the growth, survival, feed utilization, nutrients digestibility, body composition, activity test evaluation, intestinal bacterial load, and hematological indices of European seabass, <i>Dicentrarchus labrax</i> fry. A feeding experiment was conducted in <i>D. labrax</i> using five different diets with the same proximate composition. Introvit-ES100 oral® (ES) provides 50 mg/mL vitamin E and 0.5 mg/mL selenium, a source of VE and Se. The only distinction between the diets was the level of VE and SE. Each diet was fed to triplicate groups of fish (initial weight: 0.13 g) for 84 days. The control diet (ES<sub>0</sub>%) did not contain any added ES. Diets 2–5 included varying: 50: 0.5 mg/kg (ES<sub>1</sub>%), 100: 1.0 mg/kg (ES<sub>2</sub>%), 150: 1.5 mg/kg (ES<sub>3</sub>%), and 200: 2.0 mg/kg (ES<sub>4</sub>%). The water quality parameters were temperature 22, with a pH range of 7.9–8.2, the salinity range is 31.3–32.4 ppt, and the nitrogen concentrations are as follows: N at 0.54, NH<sub>3</sub> at 0.73, and NH<sub>4</sub> at 0.77. The results showed that seabass fry had the highest FBW, WG, SGR, FL, and K values when fed 150: 1.5 mg kg<sup>−1</sup> of VE and Se, respectively (ES<sub>3</sub>%). Fish provided the ES<sub>4</sub>% diet had the highest survival (%) and showed inferior growth performance. Apparent digestibility coefficient analysis, which included protein, lipid, and carbohydrate digestibility, revealed that the highest values were recorded in fish fed the ES<sub>3</sub>% diets. The highest body protein was recorded in ES<sub>3</sub>%; the lowest lipid content value was recorded in ES<sub>4</sub>%. The highest white blood cell count, red blood cell count, and hematocrit values were recorded in ES<sub>3</sub>%. While the highest hemoglobin values were recorded in ES<sub>4</sub>%. The highest activity test value was recorded in ES<sub>2</sub>% and ES<sub>3</sub>% diets. The lowest <i>Vibrio</i> sp. count was recorded in ES<sub>3</sub>%. While the <i>Aeromonas</i> sp. was not detected in all experimental treatments. The results indicated that supplementing the diet with 150 mg kg<sup>−1</sup> of VE and 1.5 mg kg<sup>−1</sup> of Se improved growth performance, feed utilization, and survival rates, resulting in increased production of <i>D. labrax</i> fry after weaning in marine hatcheries.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10499-024-01793-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Women's empowerment in aquaculture: a path analysis of economic and social influences in Southern Odisha, India","authors":"Biswajit Sahoo, Dwity Sundar Rout, Pritam Tripathy, Subha Laxmi Sahoo, Samik Kumar Pradhan, Chandan Kumar Mahanta","doi":"10.1007/s10499-024-01811-x","DOIUrl":"10.1007/s10499-024-01811-x","url":null,"abstract":"<div><p>The Sustainable Development Goals (SDGs) emphasize gender equality and women's empowerment as essential to global development, particularly in sectors that support food security and economic growth, such as aquaculture. This study investigates women's empowerment levels in aquaculture within Self-Help Groups (SHGs) in Southern Odisha, using an improved Women Empowerment in Aquaculture Index (WEAI). Data were collected from two Self-Help Groups (SHGs) in each of the Gajapati and Rayagada districts, measuring empowerment across six domains: “access to and control over resources and services”, “participation in social and economic activities”, “ability to decide independently”, “control over use of income”, “knowledge on aquaculture”, and “attitude towards aquaculture”. Findings revealed significant variability in empowerment levels, where “control over use of income” being the highest among the domains. In contrast, “participation in social and economic activities” and “knowledge of aquaculture” were notably lower. Path analysis highlighted the importance of participation in extension activities and access to information in driving empowerment, while factors like innovativeness require better support. Garrett's ranking method identified critical constraints such as “Lack of financial support from the Govt. organisations”, “high cost of feed”, and “lack of need-based training programme” having regional variations between Gajapati and Rayagada. The study concludes that a multifaceted approach is essential to promote empowerment, including localized training, enhanced resource access, and targeted policy support. Future research should aim to refine empowerment strategies to encourage both individual women's and community growth in aquaculture.\u0000</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A lightweight fine-grained pelagic fish recognition algorithm based on object detection","authors":"Weiyu Ren, Dongfan Shi, Yifan Chen, Liming Song, Qingsong Hu, Meiling Wang","doi":"10.1007/s10499-024-01737-4","DOIUrl":"10.1007/s10499-024-01737-4","url":null,"abstract":"<div><p>In order to enhance the fine-grained recognition of fish species, this paper proposes a lightweight object detection model YOLOv8n-DFG. The model accurately identifies six pelagic fish species including flatfin sailfish, striped marlin, Atlantic bluefin tuna, bigeye tuna, longtail tuna, and yellowfin tuna, meeting the requirements for real-time detection and fishing monitoring. Firstly, by introducing FasterNet Block and EMA attention mechanism into the YOLOv8 network structure to improve C2f and obtain the C2f-FE module, this model enhances feature extraction accuracy and operational efficiency. Subsequently, it combines BiFPN structure with C2f-FE module to construct a fast and lightweight neck network structure that achieves multi-scale feature fusion. Additionally, Dysample dynamic upsampling module is introduced along with porting of ADown downsampling module from YOLOv9 to optimize feature pyramid sampling method named as YOLOv8-FG. Finally, using large-sized YOLOv8s-FG as teacher network and small-sized YOLOv8n-FG as student network based on CWD loss intermediate layer feature distillation method constructs the final model YOLOv8n-DFG. Experimental results on a dataset containing six morphologically similar fish species demonstrate the effectiveness of these improvements and distillation effects are significant. Compared to YOLOv8n, precision has increased by 7.8%, recall by 3.3%, mAP@0.5 by 5.6%, mAP@0.5:0.95 by 6.7%, while FlOPs decreased by 42% with a reduction in model size of 58%. The results indicate that our proposed YOLOv8n-DFG demonstrates exceptional accuracy and real-time performance, effectively fulfilling the requirements for real-time fine-grained fish recognition.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. V. Nekhoroshev, A. F. Kozintsev, E. V. Gureeva, S. V. Kapranov, L. L. Kapranova, V. I. Ryabushko
{"title":"Element and carotenoid contents in the oyster Crassostrea gigas (Thunberg, 1793) with different shell pigmentation intensities","authors":"M. V. Nekhoroshev, A. F. Kozintsev, E. V. Gureeva, S. V. Kapranov, L. L. Kapranova, V. I. Ryabushko","doi":"10.1007/s10499-024-01776-x","DOIUrl":"10.1007/s10499-024-01776-x","url":null,"abstract":"<div><p>Contents of purple pigments in weakly and strongly pigmented shells of the Pacific oyster reared on a shellfish farm (Sevastopol, Crimea) were measured, and it was established that in soft tissues of oysters with strong shell pigmentation, the carotenoid content is significantly higher than in the weakly pigmented ones. The contents of the purple pigment in shells and carotenoids in soft tissues of two color morphs are described by a single linear relationship, and mechanisms of the pigment accumulation in shells and soft tissues appear to be coupled. It was shown that the concentrations of elements with small atomic numbers (Li-Ag) are generally higher in soft tissues of oysters with weakly colored shells, while the concentrations of heavier elements (Cd-U) tend to be higher in soft tissues of individuals with the intense shell pigmentation. The findings open the way toward making use of shell pigmentation as an indicator of the contents of biologically active materials in soft tissues of the Pacific oyster and breeding of oysters with strong shell pigmentation as more carotenoid-enriched and commercially valuable seafood.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Annalena Barth, Björn Stelbrink, Patrick Klüber, Patrick Schubert, Slim Bendag, Thomas Wilke
{"title":"Broad acceptance of sustainable insect-based shrimp feeds requires reproducible and comparable research","authors":"Annalena Barth, Björn Stelbrink, Patrick Klüber, Patrick Schubert, Slim Bendag, Thomas Wilke","doi":"10.1007/s10499-024-01769-w","DOIUrl":"10.1007/s10499-024-01769-w","url":null,"abstract":"<div><p>The black soldier fly (BSF) has great potential as a sustainable aquaculture feed. However, for shrimp aquaculture, research on BSF-based feeds has only recently started and the few available studies show a heterogeneous picture in terms of growth parameters of shrimp. While some of these varying results may be explained by the properties of the insect feed used, it is likely that yet unknown parameters also play a role. Moreover, pre-treatment, experimental design, and statistical analyses performed may influence the outcome of feeding experiments. Therefore, the general goal of this study is to establish basic reporting guidelines for BSF-based feeding trials in Pacific white shrimp (PWS), building on literature data and a best-practice study. Here, we (i) identify several contributing parameters that may influence life-history parameters of shrimp fed with BSF, including the genetic composition or strain of BSF used; (ii) show that the partial substitution of fishmeal-based compounds with BSF larvae could be a sustainable alternative to fishmeal-based feeds for PWS as the production index did not differ significantly between treatment and control groups in our best-practice study; and (iii) propose reporting guidelines with 39 parameters to be considered in future insect-based feeding studies in PWS to facilitate comparability and reproducibility. Overall, our study may contribute to improving the ecological, economic, and social sustainability of shrimp aquaculture through insect-based feeds.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10499-024-01769-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Captive breeding, embryonic development, and conservation of the endangered catfish, Horabagrus nigricollaris (Pethiyagoda & Kottelat 1994): a first report","authors":"C.P Abhilash, Charan Ravi, Saikrishnan K.R, Sarath Varghese, Neethu Z, Chandana B.L, Ajith Kumar T.T, Uttam Kumar Sarkar, V. S. Basheer","doi":"10.1007/s10499-024-01789-6","DOIUrl":"10.1007/s10499-024-01789-6","url":null,"abstract":"<div><p>Black collared yellow catfish, <i>Horabagrus nigricollaris</i>, an endangered endemic catfish of the River Chalakudy, Kerala, cherished by the locals is one of the most sought-after ornamental fish. Due to the limited range of distribution and rarity, <i>H. nigricollaris</i> needs to be conserved in situ. Captive breeding, embryonic development, nursery rearing, and restocking of the species were done for the first time ever as part of conservation efforts. A total of 10 breeding trials with a sex ratio of 1:1 was conducted between 2022 and 2023. Half of brooders spontaneously spawned after receiving an injection of WOVA-FH hormone (1.0 ml/kg body weight) with a latency period of 11.3 ± 0.37 h. Mean spawning fecundity was 1740 ± 193 with fertilization rate of 68.7 ± 2.4%, hatching rate of 71.3 ± 1.9%, and survival rate of 88.1 ± 3.2%. The fertilized eggs were adhesive and elliptical, golden yellow in color with a diameter of 2.1 ± 0.02 mm. The first mitotic cleavage occurs at 35 min post-fertilization (pf) and morula, blastula, and gastrula stages were completed at approximately 3.50 h, 6.15 h, and 10.30 h, respectively. The incubation period was 27 ± 3 h at a temperature between 26 and 28 °C. Newly hatched larvae were transparent and light yellowish, measuring 4.4 ± 0.2 mm, with a large oval-shaped yolk sac. Yolk absorption was completed within 3 days post-hatching. The larvae were fed a systemic and overlapping diet of live and artificial feed over 30 days, resulting in an average length and weight of 20.4 ± 0.2 mm, 1.3 ± 0.1 g, and a survival rate of 56.1 ± 3.2%. About 1500 fish of 120 days old with mean length 73 ± 3.0 mm and average weight 3.2 ± 0.2 g were reintroduced into the Chalakudy River at the Vettilapara region, which is the type locality of the species, to safeguard and increase the wild population.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Larissa Selini Dorce, Márcia Valéria Silva do Couto, Weliton Vilhalba da Silva, Mayara Schueroff Siqueira, Erika do Carmo Ota, Klaus Casaro Saturnino, Marcos Paiva Scardua, Dacley Hertes Neu, Silvia Maria Martelli, Claucia Aparecida Honorato
{"title":"Mitigation of cold stress in red female betta (Betta splendens) through dietary supplementation with annatto (Bixa orellana L.) oil extract","authors":"Larissa Selini Dorce, Márcia Valéria Silva do Couto, Weliton Vilhalba da Silva, Mayara Schueroff Siqueira, Erika do Carmo Ota, Klaus Casaro Saturnino, Marcos Paiva Scardua, Dacley Hertes Neu, Silvia Maria Martelli, Claucia Aparecida Honorato","doi":"10.1007/s10499-024-01767-y","DOIUrl":"10.1007/s10499-024-01767-y","url":null,"abstract":"<div><p>This study aimed to evaluate the effects of using annatto oil extract in the diet of red <i>Betta splendens</i> females subjected to temperature stress. A total of 150 juveniles (initial weight 0.997 ± 0.038 g and 3.909 ± 0.268 cm) were used, randomly distributed in 15 aquariums (20 L). The fish were fed for 28 days with diets containing increasing levels of annatto oil extract: 0.00; two; 4; 6- and 10-mL.kg<sup>−1</sup> diet. In the end, all individuals were submitted to a decrease in temperature and maintenance in the cold, then passed the recovery test, remaining for 6 h at low temperatures. No differences were observed regarding animal performance and survival. The oily extract did not change digestive and liver functions and skin color. The use of 2 and 10 mL promoted an increase in superoxide dismutase activity in the skin of fish submitted to a decrease in temperature. The use of 2 and 4 mL decreased catalase activity in the skin. High levels of oil extract increased gill catalase activity in temperature recovery. It is concluded that 10 ml of annatto oil extract is efficient in mitigating the effects of low-temperature stress in <i>Betta splendens</i> females.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fan Fei, Yingying Fang, Zhiwen Zhu, Xinyu Liu, Ao Li, Jiawen Zhang, Xiaoqiang Gao, Wenyang Li, Hongjun Yang, Wensheng Li, Chuanxin Zhang, Baoliang Liu
{"title":"Impact of flow velocity on growth performance, muscle texture, and nutritional composition in seabass (Lateolabrax maculatus)","authors":"Fan Fei, Yingying Fang, Zhiwen Zhu, Xinyu Liu, Ao Li, Jiawen Zhang, Xiaoqiang Gao, Wenyang Li, Hongjun Yang, Wensheng Li, Chuanxin Zhang, Baoliang Liu","doi":"10.1007/s10499-024-01787-8","DOIUrl":"10.1007/s10499-024-01787-8","url":null,"abstract":"<div><p>In order to investigate the effects of different flow velocity on the growth, digestive enzymes, muscle nutrient composition, and quality differences of seabass (<i>Lateolabrax maculatus</i>), the present study was carried out with selected seabass with body weight of 23.4 ± 0.6 g and body length of 11.1 ± 0.8 cm in a 57-day experiment at four flow velocities ( Group C (0 bl/s), Group L (0.35 ~ 0.65 bl/s), Group M (1.14 ~ 1.56 bl/s), and Group H (2.28 ~ 2.85 bl/s)). The results showed that seabass in Group M exhibited the best growth performance, with significantly higher specific growth rate (SGR), weight gain rate (WGR), and condition factor (CF) compared to other groups (<i>p</i> < 0.05). The activities of Trypsin (TRY) and Trypsin (LPS) were significantly elevated in Group M and Group H. Additionally, flow velocity positively influenced muscle texture, with Group M showing improved hardness and elasticity. The study also revealed that flow velocity affected the amino acid composition and fatty acid profile, with Group M displaying a higher content of essential amino acids and better overall nutritional quality. This research demonstrating that moderate flow velocity (1.14–1.56 bl/s) enhances both the growth and nutritional quality of seabass. This study provides a theoretical basis for the application of selecting flow velocity in fishery production and provides essential insights in seabass aquaculture, potentially improving economy.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The production of carbon quantum dots (CQDs) from cultivated blue crab shells and their application in the optical detection of heavy metals in aquaculture","authors":"Övgü Gencer","doi":"10.1007/s10499-024-01780-1","DOIUrl":"10.1007/s10499-024-01780-1","url":null,"abstract":"<div><p>In this study, carbon quantum dots (CQDs) were successfully synthesized from cultivated blue crab shells (<i>Callinectes sapidus</i>) using microwave synthesis, and their potential application for the optical detection of heavy metal ions in aquaculture environments was investigated. CQDs, known for their high fluorescence properties, are eco-friendly nanomaterials ideal for monitoring heavy metal contamination in aquatic systems. The CQDs produced here demonstrated selective detection of heavy metal ions, offering an innovative sensor platform that contributes to environmental sustainability within the aquaculture industry. XRD, FT-IR, UV–Vis, PL, AFM, and particle distribution analyses confirmed that the synthesized CQDs are chitosan-based, featuring NH₂, COOH, and OH surface functional groups that enable high selectivity and sensitivity to heavy metal ions. Additionally, colloidal stability analyses revealed that CQDs remain soluble in aqueous environments for extended periods, providing a significant advantage for environmental monitoring applications. This study highlights that CQDs derived from blue crab shells ( BCS) are strong candidates for heavy metal detection, offering a sustainable monitoring platform for aquaculture and environmental technologies.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alberto Peña-Rodríguez, Irais Ramírez-Sánchez, Sebastián Leptihn, Eduardo Quiroz-Guzmán
{"title":"A novel vibriophage vB_Vp_PvVp04 against pathogenic Vibrio parahaemolyticus and its formulation for inclusion in shrimp feed","authors":"Alberto Peña-Rodríguez, Irais Ramírez-Sánchez, Sebastián Leptihn, Eduardo Quiroz-Guzmán","doi":"10.1007/s10499-024-01797-6","DOIUrl":"10.1007/s10499-024-01797-6","url":null,"abstract":"<div><p>Phage therapy represents a promising alternative in aquaculture to control bacterial infections, helping to manage antibiotic resistance and promote healthier aquatic environments. In the present work, the phage vB_Vp_PvVp04 genome and its host range were described. Four strategies for the incorporation of this phage in shrimp <i>Penaeus vannamei</i> feed were explored: directly included as liquid (IL), encapsulation (EN), freeze-drying (FD), and encapsulation + freeze-drying (EN + FD). The results showed that vB_Vp_PvVp04 infects <i>Vibrio parahaemolyticus</i> CIBGEN003 and inhibited growth by 87.6% after 12 h. Its host range includes other <i>Vibrio</i> species. Its genome, 39,824 bp in length and lacking tRNA or antibiotic resistance genes, contains 67 ORFs. Phylogenetic analysis grouped vB_Vp_PvVp04 with other <i>Myoviridae</i> phages. During storage stability testing, diets containing vB_Vp_PvVp04 maintained stable viability over 90 days, except in IL formulations, which showed a significant reduction. The FD and EN + FD phages showed greater presence in the shrimp stomach, reaching 10<sup>11</sup> PFU/g, which would demonstrate that these methods for phage inclusion in feed can be a viable strategy for controlling opportunistic pathogens in white shrimp farming.</p></div>","PeriodicalId":8122,"journal":{"name":"Aquaculture International","volume":"33 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}